{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7971-0BA02","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7971-0BA02","canonicalUrl":"https://aoctrl.com/siemens/6ES7971-0BA02","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7971-0BA02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400, backup battery 3.6 V/2.3 AH for PS 405 4 A/10 A/20 A and PS 407 4 A/10 A/20 A for extended temperature range.","salesMarkdown":"The Siemens 6ES7971-0BA02 is the factory-specified backup battery for SIMATIC S7-400 power supplies — specifically the PS 405 and PS 407 units rated at 4 A, 10 A, and 20 A, including extended-temperature variants. It delivers 3.6 V at 2.3 Ah, which is the capacity needed to maintain the S7-400 RAM and real-time clock during a power loss or when the rack is unpowered for service. ## Regulatory compliance RoHS compliant since December 1, 2014, and REACH Article 33 candidate-list information is available for downstream supply-chain reporting. ## Physical fit and handling Packaged individually, one piece per unit, with dimensions 17.6 x 12.1 x 1.5 cm — sized to fit the battery compartment of the S7-400 power supply module. The 2.3 Ah capacity is the extended-temperature rating, so it holds charge longer in warm cabinet environments than the standard 1.3 Ah option.","metaTitle":"Siemens 6ES7971-0BA02 S7-400 Backup Battery, 3.6V 2.3Ah","metaDescription":"Siemens SIMATIC S7-400 backup battery 3.6V/2.3AH for PS 405/407 4A/10A/20A extended temp range. Active production, RoHS compliant since Dec 2014.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Accessories"],"specifications":{"Group Code":"R363","Product Group":"4110","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"Ordering Data Overview","lifecycle_stage":"mature","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"17.6 x 12.1 x 1.5 cm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-12-14","REACH Art. 33 Duty to inform according to the current list of candidates":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/222de8ebbf57af30d36a1d6f99f77cbe.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/6ES7971-0BA02?tree=CatalogTree","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7971-0BA02/alternatives.json"},"ai":{"faq":[{"question":"What is the group code and product group for this part?","answer":"Group code R363, product group 4110. These are Siemens internal classification codes used for ordering and catalog organization."},{"question":"What compliance documentation is available?","answer":"RoHS compliance effective December 1, 2014, and REACH Article 33 candidate-list information is on file. Export controls are AL: N / ECCN: N, meaning no special licensing for international shipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7971-0BA02","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ES7971-0BA02 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}